The pH of the blood plasma sample is 6.1.
The solution of carbonic acid and bicarbonate is a buffer solution. In buffer solution is a mixture of a weak base or acid and its conjugate salt. Resisting change in pH is one of the properties of a buffer system.
The concentration of carbon dioxide = 25.6 mM
The concentration of bicarbonate concentration =
24.4 mM
Pa of the carbonic acid = 6.1
The pH of the blood plasma sample with a total carbon dioxide of 25.6 mM and a bicarbonate concentration of 24.4 mM.
[tex]pH = pK _{a} + log \frac{[ HCO]}{[ H _{2}CO _{3} ]}[/tex]
[tex]pH = 6.1 + log \frac{[24.4]}{[25.6 ]}[/tex]
pH = 6.1 + log (0.953)
pH = 6.1 - 0.209
pH = 6.1
The pH of the blood plasma sample with a total carbon dioxide of 25.6 mM and bicarbonate concentration of 24.4 mM is 6.1.
Therefore, the pH is 6.1.
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